doi: 10.1016/j.carres.2007.07.021.
Epub 2007 Aug 6.
Separation of floridoside and isofloridosides by HPLC and complete (1)H and (13)C NMR spectral assignments for D-isofloridoside
Affiliations
- PMID: 17765883
- DOI: 10.1016/j.carres.2007.07.021
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Separation of floridoside and isofloridosides by HPLC and complete (1)H and (13)C NMR spectral assignments for D-isofloridoside
Carbohydr Res.
.
Abstract
Isofloridosides (1-O-alpha-D-galactopyranosylglycerol) and floridoside (2-O-alpha-D-galactopyranosylglycerol) were extracted from the red alga Porphyra umbilicalis (Linné) Kützing (Bangiales, Rhodophyta). Their separation was achieved by HPLC (NH(2) P50 column) after successive purification of the crude extract by ion-exchange chromatography and HPLC (Sugar-Pak TM1 column). 1D and 2D NMR spectroscopy experiments allowed to completely assign the (1)H and (13)C spectra of D-isofloridoside.
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